Subject: [PATCH] ARM: dts: at91: sam9x5: Fix the memory range assigned to the PMC

From: [email-masked] (Nicolas Ferre)
Date: Wed, 11 May 2016 12:11:56 +0200

Le 11/05/2016 11:00, Boris Brezillon a ?crit :
> The memory range assigned to the PMC (Power Management Controller) was
> not including the PMC_PCR register which are used to control peripheral
> clocks.
> 
> This was working fine thanks to the page granularity of ioremap(), but
> started to fail when we switched to syscon/regmap, because regmap is
> making sure that all accesses are falling into the reserved range.
> 
> Signed-off-by: Boris Brezillon <[email-masked]>
> Reported-by: Richard Genoud <[email-masked]>
> Tested-by: Richard Genoud <[email-masked]>
> Fixes: 863a81c3be1d ("clk: at91: make use of syscon to share PMC registers in several drivers")
> Cc: <[email-masked]>

Acked-by: Nicolas Ferre <[email-masked]>

Thanks Boris!

> ---
> Hi Arnd,
> 
> This patch is fixing a regression reported by Richard. Since this
> regression was introduced in 4.6-rc1 it would be great if you could
> take it before 4.6 is released.

Arnd, arm-soc guys,

I can build a Pull-Request instantly today, if you wish: just tell me if
you prefer.

Bye,

> ---
>  arch/arm/boot/dts/at91sam9x5.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
> index 0827d59..cd0cd5f 100644
> --- a/arch/arm/boot/dts/at91sam9x5.dtsi
> +++ b/arch/arm/boot/dts/at91sam9x5.dtsi
> @@ -106,7 +106,7 @@
>  
>  			pmc: pmc at fffffc00 {
>  				compatible = "atmel,at91sam9x5-pmc", "syscon";
> -				reg = <0xfffffc00 0x100>;
> +				reg = <0xfffffc00 0x200>;
>  				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>  				interrupt-controller;
>  				#address-cells = <1>;
> 

-- 
Nicolas Ferre